Karl-Thomas Neumann, chief executive officer of Adam Opel AG, speaks before the company's three millionth automobile rolls off the production line at the Opel factory, operated by General Motors Co.(GM) in Eisenach, Germany, on Wednesday, April 23, 2014. European sales at Opel and its U.K. sister brand Vauxhall gained 8.5 percent to 226,888 cars in the first quarter, slightly better than the 8.1 percent increase for the market overall, according to ACEA data. Photographer: Martin Leissl/Bloomberg via Getty Images